From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anup Patel Subject: [PATCH RESEND v2 8/8] uio: Use new memtypes in uio_dmem_genirq Date: Mon, 8 Aug 2016 11:22:37 +0530 Message-ID: <1470635557-13416-9-git-send-email-anup.patel@broadcom.com> References: <1470635557-13416-1-git-send-email-anup.patel@broadcom.com> Return-path: In-Reply-To: <1470635557-13416-1-git-send-email-anup.patel@broadcom.com> Sender: linux-doc-owner@vger.kernel.org To: Greg Kroah-Hartman , Jonathan Corbet Cc: Ankit Jindal , Jan Viktorin , Russell King - ARM Linux , Rob Herring , Mark Rutland , Ray Jui , Scott Branden , devicetree@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, Anup Patel List-Id: devicetree@vger.kernel.org This patch extends uio_dmem_genirq driver to use recently added memtypes as follows: 1. Use UIO_MEM_DEVICE memtype for MEM resources 2. Use UIO_MEM_PHYS_CACHE memtype for dynamic regions when UIO DT node is marked as DMA coherent. Signed-off-by: Anup Patel --- drivers/uio/uio_dmem_genirq.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index 1db2559..ce36afd 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -327,7 +327,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) break; } - uiomem->memtype = UIO_MEM_PHYS; + uiomem->memtype = UIO_MEM_DEVICE; uiomem->addr = r->start; uiomem->size = resource_size(r); ++uiomem; @@ -343,7 +343,12 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) " dynamic and fixed memory regions.\n"); break; } - uiomem->memtype = UIO_MEM_PHYS; + + if (pdev->dev.of_node && + of_dma_is_coherent(pdev->dev.of_node)) + uiomem->memtype = UIO_MEM_PHYS_CACHE; + else + uiomem->memtype = UIO_MEM_PHYS; uiomem->addr = DMEM_MAP_ERROR; uiomem->size = pdata->dynamic_region_sizes[i]; ++uiomem; -- 1.9.1